package com.grand.ch07;

import java.util.Scanner;

public class StackTraceTest {
    public static int factorial(int n){
        System.out.println("factorial(" + n + "):");
        Throwable t  = new Throwable();
        StackTraceElement[] frames = t.getStackTrace();
        for (StackTraceElement f: frames
             ) {
            System.out.println(f);
        }
        int r;
        if(n <= 1) r=1;
        else r = n * factorial(n-1);
        System.out.println("return" + r);
        return r;
    }

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        System.out.println("Enter n:");
        int n = in.nextInt();
        factorial(n);
    }
}
